Senior System Administrator

2 days ago


Baltimore, Maryland, United States Reflexive Concepts Full time
Job Summary

Reflexive Concepts is seeking a highly skilled Sr. System Administrator to support our team in secure enclave development networks.

Key Responsibilities:
  • Conduct thorough functional and connectivity testing to ensure continuous operability.
  • Develop and document systems administration standard operating procedures.
  • Maintain baseline system security according to organizational policies.
  • Manage accounts, network rights, and access to systems and equipment.
  • Plan, execute, and verify data redundancy and system recovery procedures.
  • Install, update, and troubleshoot systems and servers.
  • Comply with organization systems administration standard operating procedures.
  • Implement and enforce local network usage policies and procedures.
  • Manage system and server resources including performance, capacity, availability, serviceability, and recoverability.
  • Monitor and maintain system and server configurations.
  • Perform repairs on faulty system and server hardware.
  • Troubleshoot hardware/software interface and interoperability problems.

Requirements:
  • Bachelor's degree in a technical discipline and 15 years' experience as a System Administrator.
  • OR High school diploma and 20 years' experience as a System Administrator.
  • Experience with Windows Server Administration, Active Directory, and Group Policy.
  • Familiarity with Linux Server Administration.
  • VMware/ESXi.
  • VMware vCenter.
  • Networking Switching and Router Management.
  • VMWare Virtual Networking.
  • Storage Management (NetApp).
  • Hardware and Operating System troubleshooting.
  • System hardening.
  • Security Compliance Scanning (Nessus, ACAS).
  • Understanding of project design within the scope of security (RMF) requirements.
  • Active TS/SCI security clearance with polygraph.
  • Active DoD IAT Level II certification (e.g. CCNA-Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP).
  • Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.


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